network: Perform some formatting cleanup in bridge_driver.h
network: Perform some formatting cleanup in bridge_driver.h

Alter prototypes to utilize some more recent guidelines.

Signed-off-by: John Ferlan <87558058f6f829e5ec976c8ef960720af4ff9c7d@redhat.com>

nertpinx/libvirt,olafhering/libvirt,fabianfreyer/libvirt,olafhering/libvirt,eskultety/libvirt,zippy2/libvirt,eskultety/libvirt,zippy2/libvirt,eskultety/libvirt,zippy2/libvirt,libvirt/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,jardasgit/libvirt,andreabolognani/libvirt,nertpinx/libvirt,libvirt/libvirt,fabianfreyer/libvirt,crobinso/libvirt,libvirt/libvirt,nertpinx/libvirt,crobinso/libvirt,crobinso/libvirt,andreabolognani/libvirt,crobinso/libvirt,eskultety/libvirt,eskultety/libvirt,jardasgit/libvirt,andreabolognani/libvirt,jfehlig/libvirt,libvirt/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,olafhering/libvirt,andreabolognani/libvirt,jfehlig/libvirt,jardasgit/libvirt,jfehlig/libvirt,nertpinx/libvirt,nertpinx/libvirt,jfehlig/libvirt,olafhering/libvirt,jardasgit/libvirt,zippy2/libvirt